!!! Overview
[{$pagename}] is a __OPTIONAL__ [Openid-configuration] [JSON] array containing a list of Client Authentication methods supported by this [Token_endpoint]. 

The options are 
* client_secret_post
* client_secret_basic
* client_secret_jwt
* private_key_jwt
as described in Section 9 of [OpenID Connect] Core 1.0 [OpenID Connect Core 1.0]. 

Other authentication methods MAY be defined by extensions. If omitted, the default is client_secret_basic -- the HTTP Basic Authentication Scheme specified in Section 2.3.1 of [OAuth 2.0] [RFC 6749].

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]